Engine-muffler.



E. TRUIKE.

.ENGINE MUFFLER.

APPLICATION FILED DEO.1,1909.

Patented P913223. 1910.

. nurrnn s'raaias ERNST 'I ROIKE, OF SANDUSKY, OHIO, ASSIGNOR OF ONE-FOURTH TO 1 1% Specification of Letters Patent.

Enema-MUFFLER.

Application filed December 1, 1969. Serial No. 530.865.

To all whom it may concern:

Be it known that I, ERNST TROIKE, a subject of the Emperor of Germany, residing at Sandusky, in the county of Erie and State of Ohio, have invented certain new and useful Improvements in Engine-Mufiiers, of which the following is a specification.

This invention relates to mothers for explosion engines, and the same consists in the specific details of construction hereinafter fully described and claimed and illustrated in the accompanying drawing, in.wl1ich-- Figure 1 is a vertical longitudinal section; Fig. 2 is a vertical transverse section, and Fig. 3 is a sectional detail of a modification to be described.

cured rigidly and permanently to the inlet end of the tube 10. The form of the union 12 is such as to accommodate the connection with the exhaust pipe 11 of a muttler tube it) of larger diameter than the exhaust pipe,

at least: the mutiler pipe should be as large in its internal diameter as the exhaust pipe. Surrounding the tube 10. are concentric hollow casings or cylinders 13 and 14, spaced from each other and from the tube 10. said cylinders are of substantially the same length and their ends are closed and sealed by means of a pair of disks and 16, surrounding the tube 10. The disk 15 is ch'an neled at 15 and the disk 16 is channeled likewise at 16, and the ends of the cylinders 13 and 14- are seated snugly in said channels. packing .17 of fibrous material of any suitable character may be employed. in order to more completely deaden the sound and prevent any possibility of rattling of the device.

The disk 15 has a slidable fit on the tube 10 and rests snugl) against'thc end 12 of the union. The disk 16 however has screw threaded ebnnection at 18 with the outer end of the tube 10 for a particular purpose hereinafter set forth. A plu'ality of binding rods 19 are employed to secure the outer edges, of the disks properly seated against the epdsof the cylinders and said rods pass through the outer cylinder longitudinally and between the same and the inner cylinder 13. In devices of this character it, is essential that the material employed be as light. as possible consistent with the to r performed, and by the construction illu:: trated the disks and cylinders may be made of comparatively li ht and thin metal. To

this end the disks instead'of being channeled in the manner indicated may be stamped in the form shown in Fig. 3 By virtue of the binding rods 19 the disks are bound primarily to the cylinders at some distance remote from the tube 10, but by virtue of the aforesaid connection between the disks and the said tube, the-tube constitutes not only a means for securing the entire devi e to the exhaust pipe but also the tube it) constitutes a means for securing the central portions of the disks in proper spaced relation. The extreme outer end of the tube 1.0 is adapted to be closed by a cap nut 20 when the device is in full working order and used a mutiler, but when it is desired for any particular reason to throw the mother out of use the cap nut 20 may be removed without ai'tectin the adjustment or function of the securing means above set; forth, the threaded cozmection between the disk It? and the tube '10 maintaining said parts in proper position.

The tube 10 within toe cylind stantially close to the inner s1 lace of the disk 16 is provided with a number of small ports 19 extending preset my all the way around the tube and wher ,oy the gases of explosion may pass into the interior or: the cylinder 13. Likewise the in not: cylinder 13 is provided with a roiiresoonding set of exhaust ports 13 substantia 1 close to the disk 15, whereby the gases pass "from the interior of the cylinder 13 into the chamber formed between the two cylinders. B this time the force and client oi the )ort oi": the explosion will have become di. the gases will pass thence out through the outlet port 21 to any desired distance or location. The several sets of ports t0 and 13" and submay be variously arranged, but the combined hi pated, and 

